China and India are the most populous countries in the world. China's population is approximately 1.45 × 10° , while India's population is approximately 1,400,000,000. How many more people live in China than in India?
A. 5 x 10^10
B. 5 x 10^7
C. 5 x 10^9
D. 5 x 10^8
To find the difference in population between China and India, we subtract India's population from China's population:
1.45 × 10^9 - 1.4 × 10^9 = 0.05 × 10^9
Simplifying, we have:
0.05 × 10^9 = 5 × 10^7
Therefore, the difference in population is 5 x 10^7.
The correct answer is B. 5 x 10^7.